Features 1、Customized Settings: This power meter supports multi display interface one button conversion function. You can not only customize the standing wave alarm setting, but also customize the shutdown delay time setting. 2、Multiple Functions: Power Standing Wave Meter supports time delay shutdown function, automatic function, battery undervoltage protection function, LED double indication function. 3、Easy To Carry: SWR meter is small and light, which makes it easy to carry and store, suitable for indoor and outdoor use. 4、Digital Display: The standing wave meter has a digital display that directly shows forward power, reflected power, antenna power, antenna efficiency, standing wave, battery voltage and accuracy. 5、Simple Operation: This standing wave meter power range of 0.5 to 120w, and the standing wave meter control layout is convenient and easy to operate. Specification Item Type: SWR Power Meter Material: Aluminium Alloy Battery: Built in 3.7V/900mAh Rechargeable Lithium Battery ( With Built In Battery ) Basic Parameters: Frequency Range: 1.6-50MHz Power Measurement Range: 0.5W-150W VSW Measurement Range: 1.0-99.9 Insertion Loss: <0.12dB Insertion Standing Wave: 1.6-30MHz≤1.02, 30-50MHz≤1.05 Measurement Accuracy: Better Than ±5% Impedance: 50Ω Standing Wave Alarm: ≥2.0 Intermittent Alarm, ≥3.0 Continuous Alarm ( With Stop Function ) RF Interface Type: SL16-M Display Content: Forward Power, Standing Wave, Antenna Power, Efficiency Shutdown Power Consumption: <0.1uA Screen Size: 0.96 Inch Screen Type: Organic Light Emitting Diode Data Communication: USB Type c Package List 1 x SWR Meter 1 x USB Cable